Have a question concerning a couple parts. I know it's not a good idea to run an underdrive pully with the mechanical water pump due to cooling issues. But if I went with an electric waterpump, wouldn't that eliminate any ill effects of the underdrive pully on the cooling system?

 

Stock pump is run off the camshaft, not the serpentine belt.

 

under drive pulleys dont pose a cooling issue with lt1's

if it was a 1st gen sbc then u should be concerned